4e is the most hated edition by a mile. It’s based on fucking MMO’s for gods sake.
5e is fantastic and has revived D&D.
100% agree on 4e, but 5e is too simple.
3/3.5e had way too much going on, but I really feel that the pendulum swung too far in the other direction with 5e. I'm a forever-DM and, of the numerous issues with 5e, one of my biggest complaints is that the vast majority of the official monsters are incredibly boring. Huge swathes of WotCs monsters are only differentiated by their AC, HP, their damage type, and minor variations in damage totals. Those differences aren't going to be noticed much, if at all. If monsters didn't have their own art and names, players wouldn't be able to tell the difference between them half the time.
Here's a simple thought-experiment that you can do even if you don't own any 5e bestiaries:
Google a half a dozen monsters stat blocks, read through them, and then think about how those monsters would play out in a battle. After doing that, how often do you think that the information presented in the stat block is going to translate into something interesting or memorable for the players and their experience at the table? Not a lot. In fact, unless the DM is one of the guys that heavily narrates every round of combat, your players aren't going to notice the subtle differences. Even Dragons have been neutered in 5e where they're basically giant bags of hit points with a breath weapon. In previous editions dragons were extremely intimidating because they also had quite few other abilities on top of being amazing spellcasters.
Also, official monsters are not even remotely dangerous enough. I literally cannot remember a session where I have not buffed every creature the players encountered. I get that 5e is a more narrative driven system, but if the players never feel challenged or worry about the possibility of death, the game gets stale fast.
I don't play Pathfinder, but I own all the bestiaries and the monsters are objectively better in every way so I just convert them to 5e. I also convert D&D 3/3.5 creatures because they too are objectively better.
P.S. I think Pathfinder 2e is a much better system than 5e, but 30+ years of playing D&D has made it surprisingly difficult for me to switch systems. I
know D&D. I know it well enough to make rule changes without breaking things. I'm also extremely familiar with a lot of the lore of Dragonlance, Forgotten Realms, Planescape, Dark Sun, Ravenloft, etc. I know almost nothing about Golarian and definitely don't understand the rules well enough to start changing things.